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Finding the Fourth Proportional to 270,025.60, 404,779.20 and 210,020.80

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Solution

The fourth proportional to 270,025.60, 404,779.20 and 210,020.80 is: 314,829.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,025.60 : 404,779.20 = 210,020.80 : x
  2. Step 2: Convert to fraction form
    270,025.60/404,779.20 = 210,020.80/x
  3. Step 3: Cross multiply
    270,025.60x = 404,779.20 × 210,020.80
  4. Step 4: Simplify right side
    270,025.60x = 85,012,051,407.36
  5. Step 5: Solve for x
    x = 85,012,051,407.36/270,025.60
  6. Step 6: Final answer
    x = 314,829.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.